repeat
    print "How far would you like me to travel?"
    l = read()
    print "How wide would you like the tunnel?"
    w = read()
    print "How tall would you like the tunnel?"
    h = read()

    -- Confirming input
    print ("Im going forward " ..l " blocks!")
    print ("Im going to make the tunnel " ..w " blocks wide!")
    print ("Im going to make the tunnel " ..h " blocks tall!")
    print "Confirm? (Y/N)"
    answer = read()
        if answer == "Y" or "y" then
            print "Confirmed! Starting Tunnel!"
        else
            print "Please renter values..."
        end
until answer == "Y" or "y"